Error handling (CRT)

Use these routines to handle program errors.

Error-handling routines

Routine	Use
assert macro	Test for programming logic errors; available in both the release and debug versions of the run-time library.
_ASSERT, _ASSERTE macros	Similar to assert, but only available in the debug versions of the run-time library.
clearerr	Reset error indicator. Calling rewind or closing a stream also resets the error indicator.
_eof	Check for end of file in low-level I/O.
feof	Test for end of file. End of file is also indicated when _read returns 0.
ferror	Test for stream I/O errors.
_RPT, _RPTF macros	Generate a report similar to printf, but only available in the debug versions of the run-time library.
_set_error_mode	Modifies __error_mode to determine a non-default location where the C run time writes an error message for an error that will possibly end the program.
_set_purecall_handler	Sets the handler for a pure virtual function call.